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EP 3 231 247 A1

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(43) Date of publication: 18.10.2017 Bulletin 2017/42 (21) Application number: 14821099.0 (22) Date of filing: 12.12.2014

(51) International Patent Classification (IPC):  H04W 76/02(2009.01) H04L 12/24(2006.01) (86) International application number: PCT/EP2014/077560 (87) International publication number: WO 2016/091322 (16.06.2016 Gazette 2016/24)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: Telefonaktiebolaget LM Ericsson (publ) 164 83 Stockholm (SE)	(72) Inventor: OLSSON, Lasse SE-44461 Stora Höga (SE) (74) Representative: Ericsson  Patent Development Torshamnsgatan 21-23 164 80 Stockholm 164 80 Stockholm (SE)